package com.sinoglobal.dumping.view;

import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;

import com.squareup.picasso.Transformation;

/**
 * Picasso 圆形图片转换类
 */
public class Dumpling_PicassoCircleTransform implements Transformation {

    @Override
    public Bitmap transform(Bitmap source) {
        int size=Math.min(source.getWidth(),source.getHeight());
        int x=(source.getWidth()-size)/2;
        int y=(source.getHeight()-size)/2;
        Bitmap squareBitmap=Bitmap.createBitmap(source,x,y,size,size);
        if (squareBitmap!=source){
            source.recycle();
        }
        Bitmap bitmap=Bitmap.createBitmap(size,size,source.getConfig());
        Canvas canvas=new Canvas(bitmap);
        Paint paint=new Paint();
        BitmapShader shader=new BitmapShader(squareBitmap,BitmapShader.TileMode.CLAMP,BitmapShader.TileMode.CLAMP);
        paint.setShader(shader);
        paint.setAntiAlias(true);
        int r= (int) (size/2f);
        canvas.drawCircle(r,r,r,paint);
        squareBitmap.recycle();
        return bitmap;
    }

    @Override
    public String key() {
        return "circle";
    }
}
